Dehairing machine



Feb. 10, 1942. 5. J. MARQUARDT 2,272,918

DEHAIRING MACHINE Original Filed July 13, 1958 i Y 45 [NI/ENTOH.

: Marc a-2x111? ,LL, Hi'romv sr Patented Feb. 10, 1942 UNETED STATES PATEN caries Original application July 13, 1938, Serial No. 218,973. Divided and this application April 1, 1940, Serial No. 327,109

2 Claims.

The invention relates to dehairing machines and particularly to devices for dehairing hogs and is a division of my previous application for Dehairing machine, Serial Number 218,973, filed July 13, 1938, and issued as Patent Number 2,201,297, dated May 21, 1940. The mechanical dehairing of a hog is more -or less difiicult due to the various curvatures of the carcass and for this reason the devices that make use of scrapers are not entirely satisfactory. The head is most difiicult to mechanically dehair.

The object of my invention is to provide a machine having novel means to remove hair from the head of a carcass irrespective of the shape or the various curvatures thereof.

The invention consists of revolubly mounted coiled members adapted to engage the surface of the head of an animal and remove the hair therefrom.

The invention is illustrated in the accompanying drawing, in which Figure 1 is a side elevation partly in section of a machine embodying the invention.

Fig. 2 is a cross-section on line 22 of Fig. 1.

Fig. 3 is a fragmentary cross-section on the line 33 of Fig. 1, the view showing only the parts immediately below said line.

Referring to the embodiment of the invention illustrated in the drawing, a receptacle 35 having a conical bottom 36 is supported on the frame 31, the pipe 38 being the outlet of the receptacle which may be connected to a pump. The animal head 39 is suitably secured to the upper side of the bottom 36, as by the jaws 40 which project through an opening in said bottom and are pivoted at Al to a plate 42, and having their lower arms 63 connected by the toggle 44 and link 45 to the pedal 43. By depressing thepedal the jaws are forced into the head 39 and hold it firmly on the bottom 36.

A vertical shaft 41 is revolubly longitudinally slidably mounted on the frame 31 and the guide 48. A spring 49 on the shaft engages the boss 50 on the main frame and the collar on the shaft and opposes the downward movement of the shaft. The gears 52 and 53 drive the shaft 41, the gear 52 having a pin 54 that extends into a groove 55 in the shaft. A rack-carrying sleeve 56 is longitudinally slidable on the shaft 47, which is adapted to rotate therein and a segment gear 51 meshes with the rack and is pivotally mounted on the main frame. A handle or lever 58 is secured to the gear 51 by which the gear may be oscillated to raise and lower the sleeve on the shaft 41. The lower end of the sleeve bears against a plate 59 that is secured to the lower end of the shaft 41. number of bars 60 are pivoted at the upper end to the plate 59 and depend therefromand the annular coiled springs 61 are attached to the bars one above another. As shown, the lowest spring is the largest in diameter and the uppermost the smallest in diameter. As many springs of desired diameter maybe used as required. Each spring is preferably formed of flat material wound on edge.

A bell B2 is mounted on the sleeve and a spray nozzle 63 projects through the bell. A conduit 64 connects the nozzle to a source of supply of hot water by which hot water is sprayed over the head. By rocking the handle 58 upwardly the gear 51 causes shaft 41 and the rack and the spring carrier to descend. The rotating springs 6| contact and conform to the surface of the head as they descend and the hair on said surface is caught between the turns of the springs and pulled out thereby. The springs are most effective in removing the hair from all parts of the head including the ears. In order to position the head 39 properly the hole 66 in the bottom 36 is crossed by a spider 61 carrying a centrally disposed conical pin 68 and a pair of guide arms 69.

What I claim is:

1. A machine for dehairing an animal comprising a series of spaced rings formedof coiled springs, a flexible mounting supporting the rings, a driving shaft to rotate the mounting and means to move the rings onto and over the surface to be dehaired.

2. A machine for dehairing the head of an animal comprising a revolubly and longitudinally slidably mounted shaft, means to rotate the shaft, a frame driven by the shaft and including depending pivotally mounted arms, a series of coiled springs, each in the form of a ring and supported by the said arms one above another,,

means to support the animal head below the frame and means to move the rotating coiled springs into contact with and over the surface of said head.

SAMUEL J. MARQUARDT.

A suitable 

